[INFO] updating cached repository Troinnn/snake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Troinnn/snake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Troinnn/snake" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Troinnn/snake"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Troinnn/snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Troinnn/snake" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Troinnn/snake"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Troinnn/snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fc8f88fc29569d4797ec427fc6bd0bd32249fb1f
[INFO] sha for GitHub repo Troinnn/snake: fc8f88fc29569d4797ec427fc6bd0bd32249fb1f
[INFO] validating manifest of Troinnn/snake on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Troinnn/snake on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Troinnn/snake
[INFO] finished frobbing Troinnn/snake
[INFO] frobbed toml for Troinnn/snake written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Troinnn/snake/Cargo.toml
[INFO] started frobbing Troinnn/snake
[INFO] finished frobbing Troinnn/snake
[INFO] frobbed toml for Troinnn/snake written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Troinnn/snake/Cargo.toml
[INFO] crate Troinnn/snake already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Troinnn/snake against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-4/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Troinnn/snake:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b93440df1c69d883e6d5e2df9d1e16f184192003e1dde5726bb90c1f35af0ec9
[INFO] running `"docker" "start" "-a" "b93440df1c69d883e6d5e2df9d1e16f184192003e1dde5726bb90c1f35af0ec9"`
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking pistoncore-window v0.32.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.37.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.47.0
[INFO] [stderr]     Checking piston v0.37.0
[INFO] [stderr]     Checking test_project v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]   --> src/objects/mod.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |         use graphics;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:2:1
[INFO] [stderr]    |
[INFO] [stderr] 2  | extern crate graphics;
[INFO] [stderr]    | ---------------------- the item `graphics` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/objects/mod.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:2:1
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/objects/mod.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 146 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:2:1
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/objects/mod.rs:213:13
[INFO] [stderr]     |
[INFO] [stderr] 213 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:2:1
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]   --> src/objects/mod.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |         use graphics;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:2:1
[INFO] [stderr]    |
[INFO] [stderr] 2  | extern crate graphics;
[INFO] [stderr]    | ---------------------- the item `graphics` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/objects/mod.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:2:1
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/objects/mod.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 146 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:2:1
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/objects/mod.rs:213:13
[INFO] [stderr]     |
[INFO] [stderr] 213 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:2:1
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/objects/mod.rs:98:17
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let mut tt: graphics::types::Rectangle = graphics::rectangle::square((rect.0 * 20) as f64, (rect.1 * 20) as f64, 20_f64);
[INFO] [stderr]    |                 ----^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/objects/mod.rs:98:17
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let mut tt: graphics::types::Rectangle = graphics::rectangle::square((rect.0 * 20) as f64, (rect.1 * 20) as f64, 20_f64);
[INFO] [stderr]    |                 ----^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.63s
[INFO] running `"docker" "inspect" "b93440df1c69d883e6d5e2df9d1e16f184192003e1dde5726bb90c1f35af0ec9"`
[INFO] running `"docker" "rm" "-f" "b93440df1c69d883e6d5e2df9d1e16f184192003e1dde5726bb90c1f35af0ec9"`
[INFO] [stdout] b93440df1c69d883e6d5e2df9d1e16f184192003e1dde5726bb90c1f35af0ec9